1. Institute of Crystalline Materials, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China
2. Scientific Instrument Center, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China
3. State Key Laboratory of Quantum Optics and Quantum Optics Devices, Shanxi University, Taiyuan, Shanxi 030006, People’s Republic of China
4. Key Laboratory of Materials for Energy Conversion and Storage of Shanxi Province, Taiyuan, Shanxi 030006, People’s Republic of China